*{
    margin:0;
    padding:0;
}
.topnav{
    width:100%;
    height:50px;
    background: white;
    /* margin-top:10px; */
}
.topnav ul{
    width:100%;
    height:100%;
    border-bottom: 1px solid #E4E4E4;
}
.topnav ul li{
    width:33%;
    height:100%;
    float: left;
    text-align: center;
    line-height: 50px;
}
.useractive{
    color:#FF0000;
    border-bottom: 2px solid #FF0000;
}



.bombtn{
    width:70%;
    height:40px;
    position: fixed;
    top:90%;
    left:15%;
    background: #18AAF3;
    border-radius: 30px;
}
.bombtn a{
   display: block;
   width:100%;
   height:100%;
   text-align: center;
   line-height: 40px;
   color: white;
}

.box_msg{
    width:100%;

}
.box_msg ul{
    width:100%;

}
.box_msg ul li{
    width:100%;
    height:80px;
    border-bottom: 1px solid #F2F2F2;
    background: white;
    padding-left: 10px;
    padding-right: 10px;
}
.box_for{
    width:100%;
    height:100%;
    text-align: left;
    display: flex;
    justify-content: flex-start ;
    /* line-height: 100px; */
    padding-top: 10px;
}
.box_for img{
    width:60px;
    height:60px;
    vertical-align: middle;
    margin-right: 10px;
    border-radius: 50%;
}
.box_sun div:nth-child(2){
    color: #A4A4A4;
    margin:5px 0 5px 0;
}
.box_sun div:last-child{
    color:#3485EE;
}